0xd7b4342c3493f7be1b023a606f4d3fe680f67ea132b6621d82fcd0525d80f29e

How to verify this batch yourself

Take any stamp's content hash, walk the merkle proof in its certificate to recompute the root, then call timestamps(root) on the BA Stamper contract on any Polygon full node. The block timestamp returned is the on-chain proof — no trust in BA Stamp required.